<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Neon Button Animation UI</title>
    <link rel="stylesheet" href="style.css" />
  </head>
  <body>
    <button style="--clr: #39ff14"><span>Button</span><i></i></button>
    <button style="--clr: #ff44cc"><span>Button</span><i></i></button>
    <button style="--clr: #0ff0fc"><span>Button</span><i></i></button>
    <button style="--clr: #8a2be2"><span>Button</span><i></i></button>
  </body>
</html>
